161837 divided by 66 
The aim is to understand the frequency of 66 in 161837.

On to step 1:
66 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 66

Moving on to step 2:
66 can be fit into 16 0 times, resulting in a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Fetch the next digit (1) from the dividend, attach it to 16 and continue: 161 / 66

Step 3:
The number 66 fits into 161 2 times, leaving a remainder of 29.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 132 from 161, we get 29.
Take the next digit (8) from the dividend and append it to 29, then repeat: 298 / 66

Advancing to step 4:
66 can be fit into 298 4 times, resulting in a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
If we take 264 away from 298, we end up with 34.
Include the next digit (3) from the dividend after 34, then repeat: 343 / 66

Let's proceed to step 5:
66 goes into 343 5 times with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 245.0
If we subtract 330 from 343, we get 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 66

Going ahead to step 6:
66 goes into 137 2 times with a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 2452.0
If we subtract 132 from 137, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
66 can be fit into 50 0 times, resulting in a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 2452.0
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 8:
If we divide 500 by 66, we get 7 and a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 2452.07
Subtract 462 from 500 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 9:
380 divided by 66 is 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 2452.075
Subtract 330 from 380 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
66 goes into 500 7 times with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 2452.0757
If we subtract 462 from 500, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 11:
66 goes into 380 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 2452.07575
Subtract 330 from 380 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 12:
500 divided by 66 is 7 with a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 2452.075757
If we take 462 away from 500, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 13:
When dividing 380 by 66, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 2452.0757575
Subtract 330 from 380 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
66 can be fit into 500 7 times, resulting in a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 2452.07575757
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

In conclusion, the division gives 2452.07575757 with a balance of 3.8e-08.